Science Term 3

 Hello fellow readers and welcome back todays blog post is about what we are doing in science.This week we have been learning about convection and conduction they are both types of heat transfer-where energy is passed from hot to cold. Conduction is and energy transferred thorugh contact if something is a good thermal conductor it can pass on heat for example a stove top need to be a good thermal conductor so it can cook heat your pan, and a frying pan is also a good thermal conductore because the heat goes from the pan to your food. Thermal Insulator does not pass on heat which means it can stop heat from leaveing To exmaples  jackets can be thermal insulator and a Blanket is also a theremal insulator. Convection is a non conact heat transfer, hot stuff rises,cold stuff sinks from example a hearter makes the hot air rises, and cold air from the frezzer will go to the ground. We also did tea bag rockets for this we had to cut open  tea bag tip the inside out and stand it up once you put it on firer it went up and the asher would come down because it cooled down.

Why did the tea bag go up? It when up because it was more dense than it would have been with the tea in it.

Why did the ashers come down? It came back down because it would have been come less dense when it cooled off.